A services process is monitored using × and R charts. Eightsamples of n = 10observations have been gathered with the following results.Sample
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23456
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8BMean4.2443.63.84.93.04.2
3.23.2Range43525320.3642.3542
A services process is monitored using × and R charts. Eight samples of n = 10 observations have been gathered with the f
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